Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value

Author: nicolas-grekas

AbstractString.php

@@ -399,7 +399,7 @@ public function isEmpty(): bool
     /**
      * @return static
      */
-    abstract public function join(array $strings, string $lastGlue = null): self;
+    abstract public function join(array $strings, ?string $lastGlue = null): self;
 
     public function jsonSerialize(): string
     {
@@ -477,7 +477,7 @@ abstract public function reverse(): self;
     /**
      * @return static
      */
-    abstract public function slice(int $start = 0, int $length = null): self;
+    abstract public function slice(int $start = 0, ?int $length = null): self;
 
     /**
      * @return static
@@ -487,12 +487,12 @@ abstract public function snake(): self;
     /**
      * @return static
      */
-    abstract public function splice(string $replacement, int $start = 0, int $length = null): self;
+    abstract public function splice(string $replacement, int $start = 0, ?int $length = null): self;
 
     /**
      * @return static[]
      */
-    public function split(string $delimiter, int $limit = null, int $flags = null): array
+    public function split(string $delimiter, ?int $limit = null, ?int $flags = null): array
     {
         if (null === $flags) {
             throw new \TypeError('Split behavior when $flags is null must be implemented by child classes.');
@@ -560,7 +560,7 @@ public function startsWith($prefix): bool
      */
     abstract public function title(bool $allWords = false): self;
 
-    public function toByteString(string $toEncoding = null): ByteString
+    public function toByteString(?string $toEncoding = null): ByteString
     {
         $b = new ByteString();
 

AbstractUnicodeString.php

@@ -203,7 +203,7 @@ public function folded(bool $compat = true): parent
         return $str;
     }
 
-    public function join(array $strings, string $lastGlue = null): parent
+    public function join(array $strings, ?string $lastGlue = null): parent
     {
         $str = clone $this;
 

ByteString.php

@@ -42,7 +42,7 @@ public function __construct(string $string = '')
      * Copyright (c) 2004-2020, Facebook, Inc. (https://www.facebook.com/)
      */
 
-    public static function fromRandom(int $length = 16, string $alphabet = null): self
+    public static function fromRandom(int $length = 16, ?string $alphabet = null): self
     {
         if ($length <= 0) {
             throw new InvalidArgumentException(sprintf('A strictly positive length is expected, "%d" given.', $length));
@@ -213,7 +213,7 @@ public function isUtf8(): bool
         return '' === $this->string || preg_match('//u', $this->string);
     }
 
-    public function join(array $strings, string $lastGlue = null): parent
+    public function join(array $strings, ?string $lastGlue = null): parent
     {
         $str = clone $this;
 
@@ -356,7 +356,7 @@ public function reverse(): parent
         return $str;
     }
 
-    public function slice(int $start = 0, int $length = null): parent
+    public function slice(int $start = 0, ?int $length = null): parent
     {
         $str = clone $this;
         $str->string = (string) substr($this->string, $start, $length ?? \PHP_INT_MAX);
@@ -372,15 +372,15 @@ public function snake(): parent
         return $str;
     }
 
-    public function splice(string $replacement, int $start = 0, int $length = null): parent
+    public function splice(string $replacement, int $start = 0, ?int $length = null): parent
     {
         $str = clone $this;
         $str->string = substr_replace($this->string, $replacement, $start, $length ?? \PHP_INT_MAX);
 
         return $str;
     }
 
-    public function split(string $delimiter, int $limit = null, int $flags = null): array
+    public function split(string $delimiter, ?int $limit = null, ?int $flags = null): array
     {
         if (1 > $limit = $limit ?? \PHP_INT_MAX) {
             throw new InvalidArgumentException('Split limit must be a positive integer.');
@@ -426,12 +426,12 @@ public function title(bool $allWords = false): parent
         return $str;
     }
 
-    public function toUnicodeString(string $fromEncoding = null): UnicodeString
+    public function toUnicodeString(?string $fromEncoding = null): UnicodeString
     {
         return new UnicodeString($this->toCodePointString($fromEncoding)->string);
     }
 
-    public function toCodePointString(string $fromEncoding = null): CodePointString
+    public function toCodePointString(?string $fromEncoding = null): CodePointString
     {
         $u = new CodePointString();
 

CodePointString.php

@@ -194,15 +194,15 @@ public function replace(string $from, string $to): AbstractString
         return $str;
     }
 
-    public function slice(int $start = 0, int $length = null): AbstractString
+    public function slice(int $start = 0, ?int $length = null): AbstractString
     {
         $str = clone $this;
         $str->string = mb_substr($this->string, $start, $length, 'UTF-8');
 
         return $str;
     }
 
-    public function splice(string $replacement, int $start = 0, int $length = null): AbstractString
+    public function splice(string $replacement, int $start = 0, ?int $length = null): AbstractString
     {
         if (!preg_match('//u', $replacement)) {
             throw new InvalidArgumentException('Invalid UTF-8 string.');
@@ -216,7 +216,7 @@ public function splice(string $replacement, int $start = 0, int $length = null):
         return $str;
     }
 
-    public function split(string $delimiter, int $limit = null, int $flags = null): array
+    public function split(string $delimiter, ?int $limit = null, ?int $flags = null): array
     {
         if (1 > $limit = $limit ?? \PHP_INT_MAX) {
             throw new InvalidArgumentException('Split limit must be a positive integer.');

Slugger/AsciiSlugger.php

@@ -69,7 +69,7 @@ class AsciiSlugger implements SluggerInterface, LocaleAwareInterface
     /**
      * @param array|\Closure|null $symbolsMap
      */
-    public function __construct(string $defaultLocale = null, $symbolsMap = null)
+    public function __construct(?string $defaultLocale = null, $symbolsMap = null)
     {
         if (null !== $symbolsMap && !\is_array($symbolsMap) && !$symbolsMap instanceof \Closure) {
             throw new \TypeError(sprintf('Argument 2 passed to "%s()" must be array, Closure or null, "%s" given.', __METHOD__, \gettype($symbolsMap)));
@@ -98,7 +98,7 @@ public function getLocale()
     /**
      * {@inheritdoc}
      */
-    public function slug(string $string, string $separator = '-', string $locale = null): AbstractUnicodeString
+    public function slug(string $string, string $separator = '-', ?string $locale = null): AbstractUnicodeString
     {
         $locale = $locale ?? $this->defaultLocale;
 

Slugger/SluggerInterface.php

@@ -23,5 +23,5 @@ interface SluggerInterface
     /**
      * Creates a slug for the given string and locale, using appropriate transliteration when needed.
      */
-    public function slug(string $string, string $separator = '-', string $locale = null): AbstractUnicodeString;
+    public function slug(string $string, string $separator = '-', ?string $locale = null): AbstractUnicodeString;
 }

Tests/AbstractAsciiTestCase.php

@@ -46,7 +46,7 @@ public function testCreateFromEmptyString()
     /**
      * @dataProvider provideBytesAt
      */
-    public function testBytesAt(array $expected, string $string, int $offset, int $form = null)
+    public function testBytesAt(array $expected, string $string, int $offset, ?int $form = null)
     {
         if (2 !== grapheme_strlen('च्छे') && 'नमस्ते' === $string) {
             $this->markTestSkipped('Skipping due to issue ICU-21661.');
@@ -319,7 +319,7 @@ public static function provideIndexOfLastIgnoreCase(): array
     /**
      * @dataProvider provideSplit
      */
-    public function testSplit(string $string, string $delimiter, array $chunks, ?int $limit, int $flags = null)
+    public function testSplit(string $string, string $delimiter, array $chunks, ?int $limit, ?int $flags = null)
     {
         $this->assertEquals($chunks, static::createFromString($string)->split($delimiter, $limit, $flags));
     }
@@ -595,7 +595,7 @@ public static function provideTitle()
     /**
      * @dataProvider provideSlice
      */
-    public function testSlice(string $expected, string $origin, int $start, int $length = null)
+    public function testSlice(string $expected, string $origin, int $start, ?int $length = null)
     {
         $this->assertEquals(
             static::createFromString($expected),
@@ -623,7 +623,7 @@ public static function provideSlice()
     /**
      * @dataProvider provideSplice
      */
-    public function testSplice(string $expected, int $start, int $length = null)
+    public function testSplice(string $expected, int $start, ?int $length = null)
     {
         $this->assertEquals(
             static::createFromString($expected),
@@ -1083,7 +1083,7 @@ public static function provideSnake()
     /**
      * @dataProvider provideStartsWith
      */
-    public function testStartsWith(bool $expected, string $origin, $prefix, int $form = null)
+    public function testStartsWith(bool $expected, string $origin, $prefix, ?int $form = null)
     {
         $instance = static::createFromString($origin);
         $instance = $form ? $instance->normalize($form) : $instance;
@@ -1137,7 +1137,7 @@ public static function provideStartsWithIgnoreCase()
     /**
      * @dataProvider provideEndsWith
      */
-    public function testEndsWith(bool $expected, string $origin, $suffix, int $form = null)
+    public function testEndsWith(bool $expected, string $origin, $suffix, ?int $form = null)
     {
         $instance = static::createFromString($origin);
         $instance = $form ? $instance->normalize($form) : $instance;

Tests/AbstractUnicodeTestCase.php

@@ -80,7 +80,7 @@ public static function provideBytesAt(): array
     /**
      * @dataProvider provideCodePointsAt
      */
-    public function testCodePointsAt(array $expected, string $string, int $offset, int $form = null)
+    public function testCodePointsAt(array $expected, string $string, int $offset, ?int $form = null)
     {
         if (2 !== grapheme_strlen('च्छे') && 'नमस्ते' === $string) {
             $this->markTestSkipped('Skipping due to issue ICU-21661.');

Tests/Slugger/AsciiSluggerTest.php

@@ -38,7 +38,7 @@ public static function provideSlugTests(): iterable
     }
 
     /** @dataProvider provideSlugTests */
-    public function testSlug(string $expected, string $string, string $separator = '-', string $locale = null)
+    public function testSlug(string $expected, string $string, string $separator = '-', ?string $locale = null)
     {
         $slugger = new AsciiSlugger();
 

UnicodeString.php

@@ -184,7 +184,7 @@ public function indexOfLast($needle, int $offset = 0): ?int
         return false === $i ? null : $i;
     }
 
-    public function join(array $strings, string $lastGlue = null): AbstractString
+    public function join(array $strings, ?string $lastGlue = null): AbstractString
     {
         $str = parent::join($strings, $lastGlue);
         normalizer_is_normalized($str->string) ?: $str->string = normalizer_normalize($str->string);
@@ -264,7 +264,7 @@ public function replaceMatches(string $fromRegexp, $to): AbstractString
         return $str;
     }
 
-    public function slice(int $start = 0, int $length = null): AbstractString
+    public function slice(int $start = 0, ?int $length = null): AbstractString
     {
         $str = clone $this;
 
@@ -276,7 +276,7 @@ public function slice(int $start = 0, int $length = null): AbstractString
         return $str;
     }
 
-    public function splice(string $replacement, int $start = 0, int $length = null): AbstractString
+    public function splice(string $replacement, int $start = 0, ?int $length = null): AbstractString
     {
         $str = clone $this;
 
@@ -295,7 +295,7 @@ public function splice(string $replacement, int $start = 0, int $length = null):
         return $str;
     }
 
-    public function split(string $delimiter, int $limit = null, int $flags = null): array
+    public function split(string $delimiter, ?int $limit = null, ?int $flags = null): array
     {
         if (1 > $limit = $limit ?? 2147483647) {
             throw new InvalidArgumentException('Split limit must be a positive integer.');